1. Rename:   activity.outcome to  performedActivity (CodeableReference) Definition :  Identifies the activity that was performed. For example, an activity could be patient education, exercise, or a medication administration. The reference to an "event" resource, such as Procedure or Encounter or Observation, represents the activity that was performed. The requested activity can be conveyed using CarePlan.activity.plannedActivityDetail OR using the CarePlan.activity.plannedActivityReference (a reference to a “request” resource). Comments : Note that this should not duplicate the activity status (e.g. completed or in progress). The activity performed is independent of the outcome of the related goal(s). For example, if the goal is to achieve a target body weight of 150 lbs and an activity is defined to exercise, then the activity performed could be amount and intensity of exercise performed whereas the goal outcome is an observation for the actual body weight measured. Discussion :  "activity" is overloaded and represents both the request and event.  Renaming it to performed might imply a boolean (completed or not). Discussion : CodeableReference allows either CodeableConcept | Reference(Any).  The text will guide the reference to an event resource.  Event resource may have a status of not-done or in-progress. 2. Rename :  activity.reference to  plannedActivityReference Description : Activity that is intended to be part of the care plan. Definition : The details of the proposed activity represented in a specific resource. Comments :  Standard extension exists ( resource-pertainsToGoal ) that allows goals to be referenced from any of the referenced resources in CarePlan.activity.reference. The goal should be visible when the resource referenced by CarePlan.activity.plannedActivityReference is viewed independently from the CarePlan. Requests that are pointed to by a CarePlan using this element should  not  point to this CarePlan using the "basedOn" element. i.e. Requests that are part of a CarePlan are not "based on" the CarePlan. 3. Rename :  activity.detail to  plannedActivityDetail Description : In-line definition of activity Definition :  A simple summary of a planned activity suitable for a general care plan system (e.g. form driven) that doesn't know about specific resources such as procedure etc.